repass



(No Model.) W. H. REPASS.

' NUT LOOK.

:1 No.270,124. Patented Jan.'2, 1883.

UNITED STATES PATENT OFFICE.

WILLIAM H. REPASS, OF MARTINS STATION, ASSIGNOR OF ONE-HALF T ALFRED SULT, OF WYTHEVILLE, VIRGINIA.

NUT-LOCK.

SPECIFICATION forming part of Letters Patent No. 270,124, dated January Q, 1883,

Application filed January 18, 1882. (No model.)

To all whom it may concern Be it known that I. WILLIAM H. BEPASS, of Martins Station, in the county of Pulaski and State of Virginia, have invented certain new and useful Improvements in Nut-Locks; and

I do hereby declare that the following is a full,

clear, and exact description of the invention,

which will enable others skilled in the art to which it appertains to make andusc the same, reference being had to the accompanying d rawiugs, which form a part of this specification.

Figure l is a longitudinal sectional view illustrating my improved nut-lock. Fig. 2 is a transverse section on the line :rm,'-Fig. 1;

1' and Fig. 3 is a view of the key detached, showing it before and after use.

Corresponding parts in the several figures are denoted by like letters of reference.

This invention relates to nut-locks; and it consists in certain improvements in the construction of the same, which will be hereinafter fully described, and particularly pointed out in the claim.

In the drawings hereto annexed, A repre- 2 sents the bolt, the threaded portion of which is provided with longitudinal grooves 13, of which 1 havein the drawings hereto annexed shown four located equal distances apart.-

0 is the nut, which is provided with a per foration or channel, D, curved or segmental iushape, and extending from the outer end of the eye E, where it commences as a shallow channel, through the side of the nut, and terminatingin an orifice, F, in the side of the nut,

at or near the inner edge of the latter.

G is the key, which consists simply of a piece of wire, which, in order to render it easily driven into place, should be, bent or curved, as shown at a, 3. t

The operation of my invention will be readily understood from the foregoing description, taken in connection with the drawings hereto annexed. The nut, having first been properly adjusted, is tightened until the outer end of channel D registers with one of the grooves'B 5 in the bolt. The key .G is then inserted in the opening formed by channel D and the contignous groove B, and driven until its lower end protrudes beyond orifice F sufficiently to allow it to be clinched or fastened, as follows: The protruding endofthe key is bentforwardly along the side of the nut and turned over the front end or face of the latter, thus securing the keyfirm ly in position. The key, beingthus secured to the nut and engaging one of the 5 grooves Bin the bolt, locks the nut firmly and securely in position.

To remove the nut it is only necessary to bend the clinched en'd'of the key outward from the nut, when the key may be readily driven out by means of a hammer and a suitable pointed rod.

This invention is simple, easily applied,-and may be used without injury to the nut or bolt.

1am aware of the patent to'Roth, No.222,740, it December 16,1879, and I claim nothing therein shown.

Having thus described my invention, 1 claim and desire to secure by Letters Patent of the United States As an improvement in devices for locking nuts on bolts, jointly with a longitudinallygrooved bolt, a nut having a groove or hole extending from the bolt-hole atone end or surface of the nut'th'rough the wall of the nut in an oblique and slightly-curved course, whereby a nail or-piece of Wire driven through the wall of the nut along the course of the oblique hole will lock the bolt and not together, and may have its ends bent or clinched, substan- 8o tiall y as set forth. a

In testimony that I claim the foregoing as my own I have hereto affixed my signature in presence of two witnesses. WILLIAM HARPER EEPASS. Witnesses:

ALFRED SUL'r, JOHN M. WILsoN. 

